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Re: Java GC descriptor vs. tree_int_cst on 64-bit platforms
- To: Richard Henderson <rth at redhat dot com>
- Subject: Re: Java GC descriptor vs. tree_int_cst on 64-bit platforms
- From: Jeff Sturm <jsturm at one-point dot com>
- Date: Tue, 27 Mar 2001 21:43:24 -0500 (EST)
- cc: "Boehm, Hans" <hans_boehm at hp dot com>, Java Discuss List <java at gcc dot gnu dot org>, "'gcc at gcc dot gnu dot org'" <gcc at gcc dot gnu dot org>
(didn't copy gcc in my reply, sorry)
On Tue, 27 Mar 2001, Richard Henderson wrote:
> Perhaps the test suite never garbage collects...
Perhaps not. Even one collection may not be enough to fail.
I don't have any small testcases that demonstrate the problem reliably,
not even GCBench. But I've seen a problem on Alpha consistent with what
Hans describes.
> Certainly there's nothing we know of installed to disable anything.
Nothing in the source tree, no. But you can vary the initial heap size,
and a large heap can mask the problem by deferring a collection. I've
done just that to help diagnose GC problems.
Jeff